KMBE 4.NF.B.3 Jeopardy

Decompose Fractions

100

What is the decomposition of 3/5 using only unit fractions?

1/5 + 1/5 + 1/5

200

Name one way to decompose 5/6 that does NOT use only unit fractions.

Answers will vary.

300

The fraction 8/8 can be decomposed into 3/8+ 2/8 + ?/8. What is the missing fraction?

1/8

400

Find three different, non-unit fractions (none can have 1 in the numerator) that can be added together to equal 7/12. 

Answers will vary.

500

The fraction 10/12 is decomposed into three parts: 

1/12 + 5/12 + ?/12

 What is the missing fraction?

4/12

Adding Fractions

100

1/8 + 7/8?

8/8 = 1

200

3/10 + 2/10

5/10

🌝

300

10/20 + 6/20

16/20

🌝

400

5/5 + 3/5

1 3/5

🌝

500

A newborn baby gains 1 3/6 pounds each month after birth. How many pounds will the baby gain in her first six months?

9 pounds

🌝

Subtracting Fractions

100

4/8 - 3/8

1/8

🌝

200

3/4 - 2/4 

1/4

🌝

300

4/11 - 1/11

3/11

🌝

400

4/5 - 3/5

1/15

🌝

500

3/10 - 1/10

2/10 = ?/?

🌝

Adding Mixed Numbers

100

1 2/7 + 3 1/7

4 3/7

200

7/8 + 1 5/8

2 4/8 or 2 1/2

300

3 3/6 + 1 5/6

5 2/6

400

5 7/10 + 4 4/10

10 1/10

500

You use 5 ⅔ pounds of watermelon, 1 1/3 pounds of grapes to make a fruit salad. What is the total weight of your fruit salad?

7 pounds

Subtracting Mixed Numbers

100

3 2/5 - 1 1/5

2 1/5

200

4 1/4 - 2 2/4

1 3/4

300

You had 3 2/6 pounds of cookie dough. You baked 1 2/6 pounds. How much cookie dough do you have left?

2 pounds of cookie dough

400

4 3/12 - 1 4/12

2 11/12

500

20 1/6 - 19 4/6

3/6 = ?/?